标准编号：ISO 13164-2:2013
中文名称：水质 氡222 第2部分：γ射线能谱测量试验法
英文名称：Water quality — Radon-222 — Part 2: Test method using gamma-ray spectrometry
发布日期：2013-09
标准范围
This part of ISO 13164 specifies a test method for the determination of radon-222 activity concentration in a sample of water following the measurement of its short-lived decay products by direct gammaspectrometry of the water sample (see Annex A).The radon-222 activity concentrations, which can be measured by this test method utilizing currently available gamma-ray instruments, range from a few becquerels per litre to several hundred thousand becquerels per litre for a 1 l test sample.This test method can be used successfully with drinking water samples. The laboratory is responsible for ensuring the validity of this test method for water samples of untested matrices.Annex B gives indication on the necessary counting conditions to meet the required sensitivity for drinking water monitoring.
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